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HomeMy WebLinkAboutC103-Grading & Drainage Plan-Tom Wood ServiceASSUMED NORTH SCALE: 1"= 30 ' 0 30 60 00 202 O KIM:743.08' INV OUT: NE-741 .G31(8" PVC) X� SEC � 1 � 27 - _ ----- 1 00-YR FLOOD ------_---- � / ELEVATION 740.91 / /,PER LOMR 6/19/15 a G L= I J�1..... 1�� ,,I R� 'L' • ICI, 1 no ■ tym X-SEC 1.073 100-YR FLOOD 111111 as No\, =a 1 742.50 M.. W 741.60 M.E. ONE ■■■■■■■■■ I \I - - r _ - _ � ♦ 742.96 M.E. \ O 742 ■ ■ 1 ■ ■ 741.90 M.E. - too lots = I ■ 741.90 M.E. e �'J� i , tAA \ 743.40 �\----� - FA > = I 7777=4295 --♦♦ MATCH EX. FFE = 743.44 ' MFPG = 742.91 MLAG = 743.26 I I \ I \ I \ I � I \\ I I 744t--AZ)n 3Gn♦♦�9n 3�n ion 1 ♦♦ \ \ I I I 74,3.40 74 40 ♦ - - _ m I � �' �, . ■ 742.20 M.E. I I ■ I I \ \ I I \ I Ion - 30n ion \\ \ \ \ ■ 742.50 M.E. 1 F - 3.44 1 ■ - � \ FPG = 743.25 i `�i�■ L = 29 I \ 743.40 1 I ■ 742.70 M.E. = I I ■ � I I \ I ■ C I I ■ I I m 743-30 ■ _ UGE _ 7 G � ion _ _ _ _ 3Gn tiy0 \ - ` ■ 743.00 M.E. MH 104 \ 1 1/ II _ \ ��� TC=743.00 = \ 743.00 E. 1 1 II 743.20 \\ ■ INV S-740.18 L `\ / 1 I 743.20 M.E. I ■ ■ ■ ■ I. ■43.15 ` ♦ M.E. I \ INV NW=740.28 M.E.�'�I 1 1 \� ♦♦♦ 743.00 M.E.MH I \ INV E=740.28 ♦ MH 105 1 ♦ I /i \ 743.15 M.E. h5� TC=743.00 I tl \\\ I / ■ M� �- ■ ■ ■ ■� - --100-18 CMP SLOTTED DRAIN @ 0.51% - - INV W=740.79 ♦ _ 8'-15" RCP \ I ," \ \ �/ ■ M.E. 743.37 BMP 103 0.40% ' - "' -(PROVIDE 6" CONCRETE COLLAR EACH SIDE)_ ` 1 \ \ I M. 7 3. I TC=743.10 ® 1 ' 1 " RCP 743.33 ♦ 43.23 M €. I / M.E. 3011 INV KI=7A .05 3♦Jt■I � I All, INV N=74015M.E.743.25/� I __-T-/ ■ ■ 1 / I � I ■ ■ I OUTLET 101 15' - I I I `� I I I ■ ■ 1 TC=743.48 -! l \\ I I I ■ ■ \ (12" RCP, 8" ORIFICE) \ �_�-------�_�--1_�-------,_j ---C- j ■ ■ INV'S SW= Li736.67 / \ \ ci INV N/E=740.00 ■ \ \ ■ ■ \ \ :::) S.S.D. INV=739.50 ■ :%//;vzz%v///.%///.%///.%/%%/%%/%%///.%///.%///.%///."%///."% 1 iiiiiiiiiii FM �iaii�■iiI ii��i �iiiiZlF!■ii ii�1i \ ■ \ I ■ ■ 743 _ � 743.51 � I 1 \ I ■ ■ 1 M.E. 742.80 ■■■■■■■■■■■■■ ■■ii �LM_M.■-ME IN ffi�11 \\ I 0 1 1 742.80 M.E. - 743.00 M.E. 42.95 M.E. I I \ I / ■ \\\ W------------CD -------------� - - - - - ♦------------------------- ------------ ELEVATION 740.55--------- I \ ■ ■ ;�♦ 1I �_= PER LOMR 6/19/15 - - -- _----� 11 i i \ / i •�♦ m \ ■ ■ I --�- \ II Il -- / ■ ■ ♦ ♦ BMP \ 1I \= _ _ �� `\� \\� 0 ; , On ♦ 30n j' ACCESS 30n ; I ■ ■ ' 1 • \ ESMT.\ II STM STM STM / ■ ■ /� ♦ 1 li `\ 1 ----------�_ STM ■ ■ ��-� ♦ \ \ I 1 1 - - _ �� �■ �`---EX.INLET201 ------------------------� / f - \1 / ' i INV IN=736.30 -♦ - `\ 1 1 / `\ �� \ \\ \ / _ _ - - _ _ / / `� I �' ■ (12" RCP NE) M 201 �■ BMP ACCESS RIM:739.85' '� , I \ 11 I 1 1\ // \\� �/ �� I\ \ /// / ■ ■ - ESMT- INV OUT: SW-73G.20'(21" RCP) `� 33 B. S. L. _ _ _ _ _ _ _ _ _ _ _ JI ! ` ------------- 0--------------- - I- \ _i / EX. CURB INLET f ----------------- I - EX. CURB INLET �' , \ \ /M EX �` Ill 200 \ I CURB-741.48 GUTTER=741.08 CURB-741.33 \ ■ // \ I I I 1 GUTTER-740.95 I RIM:740.23' I I I I I I I INV(NW). 18 RCP 736.64 INV(W): 15"RCP=737.65 ■ '>r ` 111 INV IN:73G. 10' (21" RCP) \ I 1 I INV(E): 15"RCP=736.64 I INV(NE): 6' - CPP737.45 ■/ INV(S): 6"CPP=737.18 - \ / / i _ - - I 1 ■ r1 \ SANITARY ANHOLE 0000 J� / :- r/ / /� i i �� TC=740.91 � ^Q 1 1 / / / i \V V.W(8"PVC)=731.34 ' �V // i i M1V.E(8"PVC) 31.61 1 �� I I i N INV.N=73 .51 ----------- -------------- ----------- -- -- �ry DRAINAGE SUMMARY TOTAL SITE AREA = +/-12.18 AC PROJECT LIMITS (DISTURBED AREA & BUILDING ADDITION) = 1.09 AC CAPTURED DRAINAGE AREA TO BE DETAINED = 0.66 AC DRAINAGE AREA ALLOWED TO DIRECT DISCHARGE = 0.43 AC ALLOWABLE DISCHARGES BASED UPON REDEVELOPMENT SCENARIO (PR 100yr <= EX 10yr, PR 10yr <= EX 2yr) ALLOWABLE RELEASE RATES 10-YR = 1.76 cfs = (4.12-2.36 = EX 2yr disturbed area - PR 10yr direct discharge) 100-YR = 1.98 cfs = (5.99-4.01 = EX 10yr disturbed area - PR 100yr direct discharge) DESIGN RELEASE RATES FROM UNDERGROUND DETENTION 10-YR = 1.32 cfs (8" orifice and 12" outlet pipe) @ ELEVATION = 740.52 100-YR = 1.95 cfs (8" orifice and 12" outlet pipe) @ ELEVATION = 741.25 VOLUME OF DETENTION REQUIRED IS 0.097 AC -FT VOLUME OF DETENTION PROVIDED IS 0.118 AC -FT (21.6% greater than required 00o STORM SEWER TABLE (PRIVATE SYSTEM) STR # TC/GUT* STRUCTURE TYPE CASTING TYPE INVERTS DOWNSTREAM PIPE INFORMATION DOWNSTREAM STRUCTURE DETAIL ON SHEET # 101 743.48 PRE -CAST MANHOLE NEENAH R-1772 SW=736.67 (8" ORIFICE, 12" PIPE) 118 LF OF 12" RCP © 0.31% EX. 201 C802 102 743.33 PRE -CAST MANHOLE NEENAH R-1772 CHAMBER INVERT = 740.00 UNDERGROUND DETENTION 101 C802 103 743.10 AQUA -SWIRL XC-4 N/A S=740.05, N=740.15 12 LF OF 15" RCP @ 0.40% 102 C802 104 743.00 PRE -CAST MANHOLE NEENAH R-1772 S=740.18, E=740.28, NW=740.28 8 LF OF 15" RCP ® 0.40% 103 C802 105 743.00 PRE -CAST MANHOLE NEENAH R-1772 18" CMP SLOTTED DRAIN W=740.79 100 LF OF 18" CMP © 0.51% 104 C802 PER INDIANA STATE LAW IS-69-1991. IT IS AGAINST THE LAW TO EXCAVATE WITHOUT NOTIFYING THE UNDERGROUND LOCATION SERVICE TWO (2) WORKING DAYS BEFORE COMMENCING WORK. I NIIFAt Y� Know what's below. Call before you dig. NOTE THE DOWNSTREAM - - -- -----1 100-YR FLOOD ELEVATION 739.90 PER FLOOD STUDY SITE NOTE - NO EARTH DISTURBING ACTIVITY MAY COMMENCE WITHOUT AN APPROVED STORMWATER MANAGEMENT PERMIT. STORM SEWER NOTE THE ON -SITE STORM SEWER SYSTEM TO REMAIN PRIVATE. THE STORM SEWER SYSTEM SHALL BE CONSTRUCTED PER DESIGN SPECIFIED AND AS APPROVED BY THE CITY OF CARMEL ON THE FINAL APPROVED CONSTRUCTION PLANS. DEVIATIONS FROM THE APPROVED DESIGN SHALL ONLY BE PERMITTED DUE TO SPECIAL CIRCUMSTANCES OR DIFFICULTY DURING CONSTRUCTION AND WILL REQUIRE PRIOR FIELD APPROVAL FROM A DESIGNATED REPRESENTATIVE OF THE CITY OF CARMEL IN ADDITION TO SUPPLEMENTAL APPROVAL BY THE DESIGN ENGINEER. AN EXPLANATION OF ANY SUCH DEVIATION SHALL BE INCLUDED AS A REQUIREMENT ON AS-BUILT/RECORD DRAWINGS SUBMITTED FOR RELEASE OF PERFORMANCE GUARANTEES. APPROVED DESIGN SLOPES IDENTIFIED AS GENERATING VELOCITIES OF 2.5 FPS OR LESS OR 10 FPS OR GREATER (AT FULL FLOW CAPACITY) SHALL REQUIRE AS -BUILT CERTIFICATION AT THE TIME OF CONSTRUCTION, PRIOR TO BACKFILLING THE PIPE. THE CONTRACTOR IS INSTRUCTED TO AS -BUILT EACH SECTION OF STORM PIPE AS IT IS BEING INSTALLED TO ENSURE COMPLIANCE WITH THE DESIGN PLANS AND AS APPROVED BY THE CITY OF CARMEL. 1 r_r%_r_Alr1 SANS EXISTING SANITARY SEWER & MANHOLE -911- STMO EXISTING STORM SEWER; INLET & M.H. PROPOSED STORM SEWER; INLET BEE HIVE INLET, M.H. AND END SECTION EXISTING CONTOUR LINE PROPOSED CONTOUR LINE PROPOSED TOP OF CURB/ 759.50 GUTTER GRADE 760.0o PROPOSED GRADE o - - - - - - - - - - - S.S.D. - PERFORATED DUAL WALL HANCOR HI-Q PIPE W/ CLEAN -OUT DRAINAGE FLOW ARROW - - MAIN CONSTRUCTION LIMITS OF LAND DISTURBANCE REVISED FLOODWAY PER LOMR REVISED FLOODPLAIN PER LOMR FIFE FINISH FLOOR ELEVATION MFPG MINIMUM FLOOD PROTECTION GRADE - THE MAXIMUM OF: - 2 FEET ABOVE THE 100-YR ELEVATION OF CARMEL CREEK X-SEC: 740.91 + 2 = 742.91 - 2 FEET ABOVE THE 100-YR ELEVATION OF UNDERGROUND DETENTION: 741.25 + 2 = 743.25 MLAG MINIMUM LOWEST ADJACENT GRADE i IMMEDIATE TO THE BUILDING = 742.95 EMERGENCY OVERFLOW LIMITS N - EMERGENCY INLET PONDING ELEVATION � EMERGENCY OVERFLOW DIRECTION BUILDING ADDITION GRADING AND DRAINAGE NOTES ALL GRADES AT BOUNDARY SHALL MEET EXISTING GRADES 2. SITE GRADING SHALL NOT PROCEED UNTIL EROSION CONTROL MEASURES HAVE BEEN INSTALLED. 3. ALL SWALES SHALL HAVE A MINIMUM SLOPE OF 1.00%. 4. CONTRACTOR SHALL MINIMIZE DAMAGE TO EXISTING TREES. 5. SLOPES SHALL NOT BE GREATER THAN 3:1 UNLESS OTHERWISE SPECIFIED. 6. REMOVE AND BACKFILL ALL AREAS WHERE ANY FIELD TILE CROSSES PROPOSED BUILDING PADS. ALL FIELD TILES INTERCEPTED TO BE PERPETUATED INTO STORM SEWER SYSTEM. THE SUBCONTRACTOR SHALL NOTIFY IN WRITING THE OWNER AND THE ENGINEER IN ANY CIRCUMSTANCES WHERE THIS CANNOT BE ACCOMPLISHED. 7. FILL PLACED ON -SITE SHALL BE COMPACTED TO 95 PERCENT STANDARD PROCTOR DENSITY (ASTM D-698). REFER TO PROJECT GEOTECHNICAL REPORT FOR ADDITIONAL REQUIREMENTS. 8. THE CONTRACTOR SHALL CONFIRM ALL EARTHWORK QUANTITIES PRIOR TO THE START OF CONSTRUCTION. IF AN EXCESS OR SHORTAGE OF EARTH IS ENCOUNTERED, THE CONTRACTOR SHALL CONFIRM WITH THE OWNER AND ENGINEER THE REQUIREMENTS FOR STOCKPILING, REMOVAL OR IMPORTING OF EARTH. 9. ALL STORM SEWER TRENCHES ARE TO BE BACKFILLED WITH GRANULAR MATERIAL. 10. STANDARD SPECIFICATIONS FOR THE LOCAL GOVERNING AUTHORITY SHALL APPLY FOR ALL STORM SEWER CONSTRUCTION. 11. MAXIMUM SLOPE OF 2.00% IN HANDICAPPED PARKING AREAS. 12. ROOF DRAINS AND FOUNDATIONS DRAINS TO BE KEPT SEPARATE. REFER TO ARCHITECTURAL PLANS FOR LOCATION OF FOUNDATION DRAINS AND DOWNSPOUTS. 13. STORM SEWER TO HAVE A 30" (2.5 FT) MINIMUM COVER OVER TOP OF PIPE SITE FLOOD INFO THE SITE DOES LIE PARTIALLY WITHIN THE FEDERALLY DESIGNATED FLOOD ZONE AE PER FLOOD INSURANCE RATE MAP (FIRM) #18057C 0236 F, EFFECTIVE FEBRUARY 19, 2003 AND REVISED VIA LOMR WITH EFFECTIVE DATE OF 07/19/15. THE BASE FLOOD ELEVATION FOR THE BUILDING RENOVATION IS 740.91 FEET PER THE FEMA APPROVED LOMR DATED 07/19/15. TOPOGRAPHY NOTE THE LOCATIONS OF ALL EXISTING UNDERGROUND UTILITIES SHOWN ON THIS PLAN ARE BASED UPON ABOVE GROUND EVIDENCE (INCLUDING, BUT NOT LIMITED TO, MANHOLES, INLETS, VALVES, AND MARKS MADE UPON THE GROUND BY OTHERS) AND ARE SPECULATIVE IN NATURE. THERE MAY ALSO BE OTHER UNDERGROUND UTILITIES FOR WHICH THERE IS NO ABOVE GROUND EVIDENCE OR FOR WHICH NO ABOVE GROUND EVIDENCE WAS OBSERVED. THE EXACT LOCATION OF EXISTING UNDERGROUND UTILITIES SHALL BE VERIFIED BY THE CONTRACTOR PRIOR TO ANY AND ALL CONSTRUCTION. BENCHMARK NOTE PROJECT BENCHMARK: HAMILTON COUNTY GEODETIC CONTROL DISK (STATION NAME HCBR 246) SET ON THE NORTHWEST CONCRETE BRIDGE ABUTMENT OF THE 96TH STREET (COUNTY LINE ROAD) BRIDGE OVER WHITE RIVER. ELEV.=745.66 (NGVD 29) 745.24 (NAVD 88) THESE PLANS UTILIZE THE NGVD 29 DATUM TO COINCIDE z Z z� J F � 0 Z 0 U v_q H w z ® w W 0 o N N z W pQ QQ NuXr, o "0® ZO �z Q - zu .o JLO��zJ U)vzN � o Lo Q ti z L0 o Q � ? J :Wi w w z C� z w J U M 0 U N N � 3 U o i t Y N } cfl i co Z o ,;j aka z �Qw J v= x v) CL m Z a 0 O O CR�F-In W W W W Z OU OU U oppp p N N V) LLJ � � p p p p Z�Qaa O nj cV CV CV to 00 00 0) LLJ 0000 CY-�N��L0 0 J 0 w > W � Q Z O = � co Z Q J � J w Q � o U aN cD a \\11C WAR, 1111111//// No. PE19800489 -o = STATE OF '"o ND I ANP,G���� S/ONALIE��` BY: DATE: 05/16/22 1EET C3 OF W/ THE FEMA LOMR. JOB#: TW1.011